光—储联合供电系统的能量优化管理及控制策略

Energy optimized management and control strategy for a photovoltaic-energy storage hybrid system

随着环境污染和能源危机问题日益严重,太阳能光伏发电正成为世界关注的热点。为了满足负载工作环境,使系统具备体积小、重量轻、效率高、功率密度大、可靠性高的特点。文章提出一种新的光—储联合供电系统能量管理控制策略。基于MATLAB/Simulink仿真平台,建立了光伏电池、蓄电池、DC/DC变换器的数学模型,通过仿真分析它们的动态特性,选取最优的设计参数,再以DSP控制芯片为核心,采用脉宽调制技术,对系统的工作状态进行综合管理,通过原理样机验证了所提的系统能量管理控制策略的有效性。

With serious energy crisis and environmental pollution, the solar photovoltaic power has received great attention and experi- enced impressive progress recently.The system must meet the special environmental that load worked, with characters of small size, light weight, high effficiency,high power density, high reliability.In this paper, a novel energy management strategy is proposed for a photovohaic-energy storage hybrid system.Based on MATLAB / Simulink simulation platform, the mathematical model of photovoltaic cell,battery and DC/DC converter is established. By simulating their dynamic properties, selecting the optimal design parameters, then the DSP chip is chosen as the core controller in this paper,the pulse width modulation technology that has managed comprehen- sively system＇s working states is used, experimental results on a prototype verify the effectiveness of the proposed strategy.